20034541145 has 16 divisors (see below), whose sum is σ = 25293452688. Its totient is φ = 15214095360.

The previous prime is 20034541133. The next prime is 20034541147. The reversal of 20034541145 is 54114543002.

It can be written as a sum of positive squares in 8 ways, for example, as 706868569 + 19327672576 = 26587^2 + 139024^2 .

It is not a de Polignac number, because 20034541145 - 2⁴ = 20034541129 is a prime.

It is a super-2 number, since 2×20034541145² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20034541147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1313084 + ... + 1328253.

It is an arithmetic number, because the mean of its divisors is an integer number (1580840793).

Almost surely, 2^20034541145 is an apocalyptic number.

It is an amenable number.

20034541145 is a deficient number, since it is larger than the sum of its proper divisors (5258911543).

20034541145 is a wasteful number, since it uses less digits than its factorization.

20034541145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641420.

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 20034541145 in words is "twenty billion, thirty-four million, five hundred forty-one thousand, one hundred forty-five".